As the Delhi Metro Rail Corporation (DMRC) celebrates two decades of seamless connectivity, it is now embarking on an ambitious expansion with Phase IV projects. This phase aims to enhance urban mobility by extending critical corridors and integrating advanced infrastructure solutions. The federal government has approved further extensions, ensuring the metro network remains a cornerstone of sustainable development in the National Capital Region.

Elevating Urban Mobility with Cutting-Edge Infrastructure

Phase IV Projects: Paving the Way for Future Growth

The Delhi Metro Rail Corporation (DMRC) has embarked on a transformative journey with its Phase IV projects, which encompass three priority corridors spanning 65 kilometers and 45 stations. These corridors—Mukundpur-Maujpur, Janakpuri-R.K. Ashram, and Aerocity-Tughlakabad—are set to revolutionize public transportation in the bustling capital. With more than half of the construction already completed, the project is on track for completion by March 2026. The $3-billion investment is funded through a collaborative effort between the Government of Delhi, the Central Government, and a loan from the Japan International Co-operation Agency (JICA). The meticulous planning and execution of these corridors are not only enhancing connectivity but also setting new benchmarks in urban infrastructure. Hill International, awarded the contract for project management services, ensures comprehensive oversight over civil engineering, signaling, telecommunications, traction power supply systems, rolling stock depots, and operations control centers. This integrated approach underscores the DMRC's commitment to delivering world-class transit solutions.

Innovative Tunneling Techniques: Overcoming Urban Challenges

One of the most significant milestones in Phase IV is the completion of the longest tunneling drive—a 2.65-kilometer stretch between Tughlakabad Airforce and Maa Anandmayee Marg station on the Tughlakabad-Aerocity corridor. Afcons Infrastructure Ltd., a subsidiary of the Shapoorji Pallonji Group, utilized a state-of-the-art tunnel boring machine (TBM) that extended 105 meters in length and operated at a depth of 16 meters. The tunnel was constructed using the Earth Pressure Balancing Method (EPBM), incorporating 1,894 precast tunnel rings with an inner diameter of 5.8 meters. The tunneling process faced numerous challenges, including navigating through hard rock and relocating a sewer line. Frequent cutter replacements were necessary to maintain progress, and the alignment was carefully planned to avoid heritage structures. Steam curing of concrete segments ensured early strength, facilitating efficient construction. Work on the parallel tunnel is expected to commence in January, further advancing this monumental project.

Tunnel Boring Machines: A Game-Changer in Urban Development

TBMs have emerged as indispensable tools for underground tunneling in densely populated urban areas. In Phase III alone, 50 kilometers of underground sections were built using 30 TBMs, highlighting their pivotal role in modern infrastructure projects. According to Anuj Dayal, principal executive director with DMRC, TBMs enable precise and efficient tunneling, minimizing disruptions to surface activities and preserving historical landmarks.The use of TBMs in Phase IV exemplifies the DMRC's commitment to innovation and sustainability. By adopting cutting-edge technology, the corporation can deliver robust infrastructure that meets the growing demands of the city while adhering to stringent environmental and safety standards. This strategic approach ensures that the Delhi Metro continues to be a model of excellence in urban transit systems.

Vision for Phase V: Connecting the National Capital Region

Looking ahead, the DMRC is planning Phase V, which aims to integrate the entire Delhi region with neighboring states, forming a cohesive National Capital Region (NCR). This rural-urban confluence, home to 50 million people, includes cities like Noida in Uttar Pradesh, where a new airport is under construction. Proposals are being considered to build a 5-km corridor connecting the Noida International Airport with Delhi’s Indira Gandhi International Airport. Such initiatives underscore the DMRC's vision of fostering seamless connectivity across the NCR, driving economic growth and improving quality of life for millions of residents.The DMRC's relentless pursuit of innovation and expansion reflects its dedication to transforming urban mobility. As the corporation moves forward with Phase IV and plans for Phase V, it sets the stage for a future where efficient, reliable, and environmentally friendly transportation is within reach for all.